tranny fluid change

[kchemers]

I have a 1997 C230 with the sealed transmission. I have 140000 miles on the car and it runs and shifts like the day I bought it. I've read a lot of discussions on changing the trans fluid, with a 140000 miles on it and running good I am afraid to open it up and change the fluid. Any advice would be appreciated
Thanks, Kchemers
C230
240D 249000 miles

As much of a believer in changing tranny fluid as I am, I too would be hesitant to change it, especially if it has never been done before. My guess is changing it at this point would probably do more harm than good by loosening varnish and deposits that have accumulated over time.

I would vote to leave it alone and be happy it still works great.

My wifes 00 C230 is a sealed unit as well and I've changed it every 30k miles. Watch hers fail before it gets as many miles on it as yours. That would be a dose of irony.....

Dale